Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 30.06.2025 17:38

Alcohol
Sleep disorders
Affective disorders
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Narcolepsy
Charles Bonnet syndrome
Alcohol withdrawal
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Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).
Pharmaceutical drug (abuse or side effects)
Alzheimer's disease,
Dementia with Lewy bodies
Migraines
Grief (yes, sadly)
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Parkinson's disease
Brain Tumors
Bipolar disorder
Head injury
Dementia and drug use cause paranoia. That is very common. Some of other things that can include delusions and/or hallucination can be:
Seizures
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Infection
Hallucinogen use
Stress
Mental disorder
Fever
Delirium tremens
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Withdrawal from benzodiazepines
PTSD
⁉️sources from my experiences and internet research ⁉️